REACTIVITY PATTERNS IN THE REACTIONS OF >Ph(CO)2Cl>2 WITH CHELATING KETONES

Article abstract of DOI:10.1016/0022-328X(86)80177-2

A survey is made of the reactions of chelating ketones and aldehydes with <(CO)2RhCl>2.With the enolizable ketone 8-quinolinyl benzyl ketone a rhodium-(I)-vinyl alcohol ?-complex forms, whose crystal structure was determined (C18H13NO2CIRh, monoclinic space group C2/c, a 14.531(3), b 18.038(3), c 15.257(3), Angstroem, β 11.48(1)deg, V 3721 Angstroem³, Z = 8, final R_w 4.16percent).The non-enoizable ketone 8-quinolinyl phenyl ketone gives oxygen atom transfer to CO, producing CO2 and a 1,3-dirhodiametallacyclobutane complex.Oxygen atom 8-quinoline carboxaldehyde undergoes C-H activation followed by loss of H2 to give a dimeric acylrhodium(II), whose crystal structure was determined (C26H12N2O8Cl4Rh4, orthorhombic space group Pccn, a 9,466(5), b 13,648(9), c 24.124(14) Angstroem, V 3119 Angstroem³, Z = 4 final R_w 5.68percent).